Shingle-trimming machine.



No. 813,946. PATBNTBD H1B. 2v, 190e.

J. D. CALDWELL a; .L BUsHoNG.

SHINGLE TRMMING MACHINE.

AFPLIUATIOR FILED SEPT. 14, 1904.

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NITED STATES PATENT OFFICE.

JOHN DAVE) UALDVVELL AND IVAN BUSHNG, OF SEATTLE, WASH- INGTON.

SHlNGLE-TRlMMING MACHINE.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Application led September 14, 1904. Serial No. 224,390.

To (LH whom may concern:

Be it known that we, JOHN DAVID CALD- WELL and IVAN BUsiioNG, citizens of the United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful lmprovements in Shingle-Trimmin Machines, of which the following is a speci cation, reference being had therein to the accompanying drawings.

n vthe use of shingle-trimming machines it is customs to saw the opposite side edges of the shing es separately in order to remove the knots therefrom or to straighten such edges or to cut the same to uniform widths and produce what is known as randoms or dimensions. This naturally involves a multiplication of operations and a loss of time.

It is the object of this invention to provide in a single structure two sawing-machines whereby the shingle edges may be individually or collectively straightened, as desired, thus overcoming the disadvantages above mentioned.

To these ends the invention consists in certain novel features of construction and co1nbinations thereof, as will be described hereinafter with reference to the accompanying drawings, wherein- Figure 1 is a side elevation, and Fig. 2 is a lan view, of a shingle-trimmingmachine einodying our invention. `In said drawings the reference-numeral 2 designates the machine-frame, of suitable size and shape, and 3 is a transversely-arranged arbor journaled in boxes 4 of the frame and carrying at its opposite ends a circular saw 5 and a pulley 6.

7 is a shingle-carriage provided with a rear abutment or fence 7 and is reci rocally mounted upon track-rods 8 longitudinally of the frame.

Journaled in boxes 9 of the standards 2 is a transverse arbor 10, carrying externally of the standards a belt-pulley 1l, preferably in the same vertical lane with the pulley 6, and intermediate of tlie standards a plurality of circular saws 12. These saws are connected to their arbor, as by collars 13 and set-screws 13, so as tol be adjustably secured longitudinally thereof and at distances apart equal to the Widths of shingles it is desired to trim therewith, plus the width of the saw-kerfs 14 and 15, respectively, are feed and pressure rolls arran ed in airs in advance of and to the rear of t e sai gang of saws and are each formed with an annular recessed middle portion 18 extending to within a short distance of their extremities, so that when the rolls of each pair are brought together the ends being of greater diameter than the intermediate portions will contact, and a slot is thereby rovided betweencach pair of rolls through wlliich the points of shingles may enter suilicientl f far to be rictionally engaged by the rolls. The axles of the top or pressure rolls are journaled at 15 in the outer ends of swinging arms 16, which are pivotally secured to the said standards at 16, while the axles of the lower or feed rolls are journalod in fixed bearings 14 of the standards and are extended at one end therebeyond to carry belt-pulleys 17, which may be advantageously placed to be in line with each other for convenience in belting. -To the rear of the back pair of rolls and located slightly below the level of a medial plane proj ected between the adjacent edges of the said two plaire of rolls is a divided table 19, upon wliic is received the dimension-shingles corniiig from the gangwsaws and which are shoved over the extreme back end of the table by the next succeeding ones, while the waste or tailin s fall through the interstices or over the sigo edges to a waste pile below.

The operation of the invention is as follows: The shin les which are to be trimmed are severally p aced upon the carriage with their thick ends to the rear and resting against the fence thereof and in such trans verse position that when the Sawyer shoves the carriage forward by hand the shingle being acted upon will be presented either to the saw 5 or out of line with the latter and in line with the ang of saws therebeyond, to which the shin es are severally conve ed from the carriagegb the action of the ro ls, as before mentions Where the shingle is to be trimmed on one or both of the side edges to a width different from that for which the gangsaws are set, then the saw 5 is utilized, and first one edge is cut during the forward travel of the carria e and then withdrawn and a ain shoved orward to complete the other e ge after the shin le has been turned over, and the linished s ingle is then thrown off into a pile for bunchin Should, however, the shingles be desire to be cut into the IDO standard or dimension. sizes, corresponding to the positioning of the saws on arbor l0, they are placed upon the carriage in such manner as not to be interrupted by the single saw and are moved forward with the carriage to be acted upon by the rolls, as aforesaid. It will thus be seen that the sawyer can work his stock into shingles which will finish to most suitable widths. For example, should the stock be of width suflieient for cutting,r two standard-width shingles then he could run that particular shingle through the gangsaws; but where it is of less width than this, but considerably more than enough to make a single standard width, .then he can better trlm its edges with the single saw, as being less wasteful of the material. It will be thus seen that the present invention furnishes means to provide a considerable saving both. in time and material to shingle-manufacturcrs and marks a decided advance in the art.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a machine of the class described, the combination with the framework, of a plurality of saws mounted upon an arbor, feed and pressure rolls for said saws, a single saw mounted upon another arbor and positioned outside of the plane of the outermost of the aforesaid saws, track-rods mounted on said frame and extending from in front of to the rear of said sinqle saw and a carriage mounted on said track-rods and adapted to convey the shingles being operated upon to first-mentioned plurality of saws or to the last-nan'ied saw, substantially as described.

2. In a machine of the class described, the.` combination with a fran'iework, an arbor journalcd therein, a single saw carried on said arbor and located outside the framework, of another arbor mounted on the framework, a plurality of saws mounted on said last-named arbor and a carriage mounted on the framework and adapted to feed material to .said single saw and past said single saw to said plurality of saws.

3. In a machine of the class described, the combination with the framework, a plurality of saws carried. by an arbor, said arbor, a carriage reciprocally mounted upon said frame, of a table positioned upon the opposite end of the frame to the carriage', said table having an openingr therein through which the waste products will fall, substantially as described.

In testimony whereof we affix our signatures in presence of two witnesses.

JOHN DAVID CALDVELL. IVAN BUSHONG Iitnessesz PiEiuiE BARNES, E. WRIGHT. 

